Toyota Camry (XV70): Lost Communication with Blind Spot Monitor Master Module (U0233)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor LH judges that there is a communication problem with the blind spot monitor sensor RH.
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
U0233 | Lost Communication with Blind Spot Monitor Master Module |
The blind spot monitor sensor (slave) cannot receive signals from the blind spot monitor sensor (master) |
- Blind spot monitor sensor RH
- Blind spot monitor sensor LH
- Wire harness or connector
|
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
HINT:
- Operating the engine switch, any other switches or a door triggers related ECU and sensor communication on the CAN. This communication will cause the resistance value to change.
- Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
PROCEDURE
(a) Turn the engine switch off.
(b) Turn the engine switch on (IG).
(c) Clear the DTCs.
Body Electrical > Blind Spot Monitor Slave > Clear DTCs
(d) Check for DTCs.
Body Electrical > Blind Spot Monitor Slave > Trouble Codes
Result | Proceed to |
DTC U0233 is output | A |
No DTCs are output | B |
A |
| |
2. |
REPLACE BLIND SPOT MONITOR SENSOR RH |
Click here
NEXT |
| |
(a) Check for DTCs.
Body Electrical > Blind Spot Monitor Slave > Trouble Codes
Result | Proceed to |
DTC U0233 is output | A |
No DTCs are output | B |
B |
| END (BLIND SPOT MONITOR SENSOR RH WAS DEFECTIVE) |
READ NEXT:
DESCRIPTION This DTC is stored when the destination information of the main body ECU (multiplex network body ECU) does not match that of the blind spot monitor sensors. Blind Spot Monitor Master
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When checking for DTCs, make sure that the blind spot monitor system is turned on.
Inspect the fuses for circuits related to this system be
DESCRIPTION This circuit provides power to operate the blind spot monitor sensor. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE: Inspect the fuses for circuits related to this system before perfo
SEE MORE:
■ Fuel consumption
Current fuel consumption
Displays the instantaneous current
fuel consumption.
Average fuel economy (after
start)
Displays the average fuel consumption
since engine start.*1
Driving range
Displays the driving range with remaining fuel.*2, 3
Gadget*4
The fo
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
Flat-looking tires or uneven tire